Oops, it doesn't look like 'nude nut vid day' is a national day..

Other days

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
hoodie

Hoodie Day
cuddle up

Cuddle Up Day
bounce

Bounce Day
stress awareness

Stress Awareness Day
polyamory

Polyamory Day
healing

Healing Day
martini

Martini Day
law

Law Day
blanket fort

Blanket Fort Day